Originally Posted by
Cyclosaurus
Both work equally well to fill the tire. I had a crappy Pyramid pump that was always a pain to seat properly on the valve. For the Schraeder valves, it was just annoying, but I bent and broke a few Presta valves trying to get it to lock on. I bought a Joe Blow and no problems now with the prestas.
I have never owned a Joe Blow, but I can say that I have also bent a few presta valves. so rather than being locked into only buying joe blow, I can buy some generic pump from a sporting goods store and be certain to be able to use it an not bend any valves... and the adaptor was only .80 and that was 15 years ago....